Optic Neuritis

Definition

The optic nerve allows you to see by carrying images from your eye to your brain. Optic neuritis involves inflammation of the optic nerve. This may cause reduced vision or loss of vision. It is a serious condition that requires immediate care from your doctor.

Risk Factors

Previous history of transverse myelitis (inflammation of the spinal cord)

Symptoms

In some people, optic neuritis may not cause any visual problems. In those that have them, optic neuritis may cause:

Relatively sudden decrease in vision, such as blurring, darkening, or dimming of vision

Loss of vision in the center of, part of, or all of the visual field

Abnormal color vision, such as dull and faded colors

Pain in or around the eye, which is often made worse with eye movement

Eye pain will often go away within a few days. Vision problems will improve in the majority of people. Some may be left with blurred, dark, dim, distorted vision, or complete visual loss. Vision usually improves over several weeks or months.

Diagnosis

Optic neuritis may be difficult to diagnose. Your eye may look perfectly normal. Your doctor will ask about your symptoms and medical history. A physical exam will be done. It will include a neurologic examination. You may be referred to an ophthalmologist (eye specialist) or neurologist (nervous system specialist).

Your doctor may need to test your eye function. This can be done with:

Tests of color vision, side vision, visual acuity, and the reaction of the pupil to light

Prevention

Revision Information

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.